Description of Liquid Petroleum Gas
(LPG) Questions with Correct Answers
LPG includes: - ANSWERSpropane, propylene, butane, butylene.
Most common forms of LPG - ANSWERSbutane, propane
LPG often referred to as - ANSWERS"Bottled Gas"
LPG used in - ANSWERSdomestic, commercial, agricultural, and industrial settings
Common uses of LPG - ANSWERSdomestic heating, cooking, fuel for forklifts
Description of LPG - ANSWERSManufacturing of LPG prohibited in NYC. Naturally
colorless and odorless. It is given an odor by mixing a foul-smelling additive with the gas
(additive mercaptan(. This additive causes LPG to smell like rotten eggs. Odor allows a
leak of LPG to be easily detected. Extremely flammable and highly explosive if ignited in
an enclosed area. LPG is non-toxic, however, it can cause suffocation. LPG is heavier
than air and tens to fall to the ground and spread horizontally. Use of LPG in liquid form
is prohibited in NYC, except withdrawing of LPG in liquid form from an LPG container
for hot air balloon operations if required by the nature of the operation.
Storage of LPG - ANSWERSLPG is stored under pressure inside specially designed
containers. LPG is usually stored inside the container in a liquid state. Greater amounts
of LPG can be stored when it is in liquid form. For most uses the gas changes into a
vapor when it leaves the container. When the gas changes into a vaporous state it
expands to 269 TIMES its original volume. The expansion rate causes liquid LPG to be
a much greater fire hazard than a vapor leak. A liquid LPG leak can cause an explosion
even in an outdoor location. Safety procedures must be followed to reduce the danger a
potential unintended release of LPG.
Portable Containers - ANSWERSContainers must be approved by DOT. Containers
must be tested by DOT approved vendors every 5 years. Certificate of fitness holder is
responsible for ensuring the container's condition including the marked date for statutory
testing due. Container due for testing must be sent for testing to ensure that is is safe
for use.
Filling containers - ANSWERSContainers are NOT filled to capacity with LPG. Vapor
space is left in container to allow for expansion of LPG. Necessary because LPG
expands when it becomes warmer. Standard portable LPG containers are allowed to